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Finding the Fourth Proportional to 64,644.48, 97,011.36 and 42,468.48

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Solution

The fourth proportional to 64,644.48, 97,011.36 and 42,468.48 is: 63,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,644.48 : 97,011.36 = 42,468.48 : x
  2. Step 2: Convert to fraction form
    64,644.48/97,011.36 = 42,468.48/x
  3. Step 3: Cross multiply
    64,644.48x = 97,011.36 × 42,468.48
  4. Step 4: Simplify right side
    64,644.48x = 4,119,925,001.93
  5. Step 5: Solve for x
    x = 4,119,925,001.93/64,644.48
  6. Step 6: Final answer
    x = 63,732.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.